Hi. Thanks for your reply. However I am still getting the same problem. I copied the contents of the extracted files part 1 to the root of the internal memory after formatting it. I copied the maps and poi folders to the SD card under Navigon folder. Still the same dialogue warning problem.

You mentioned 38 files but I only had 30. Also not sure about what you meant about not downloading advisor.nfs and data files. I didn't download these separately but there is an advisor.nfs in the settings\core folder. I'm assuming that it should be there.

Data folder is for Android. advisor.nfs is not updated and original advisor.nfs on Navigon 40 plus 257kb, on 8310 230kb and another kb big on other devices. If you change it than your navigatie give error during route

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